30312120100 has 18 divisors (see below), whose sum is σ = 65777300834. Its totient is φ = 12124848000.

The previous prime is 30312120089. The next prime is 30312120119. The reversal of 30312120100 is 102121303.

It can be written as a sum of positive squares in 3 ways, for example, as 9918566464 + 20393553636 = 99592^2 + 142806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151560501 + ... + 151560700.

Almost surely, 2^30312120100 is an apocalyptic number.

It is an amenable number.

30312120100 is an abundant number, since it is smaller than the sum of its proper divisors (35465180734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30312120100 is a wasteful number, since it uses less digits than its factorization.

30312120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303121215 (or 303121208 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30312120100 its reverse (102121303), we get a palindrome (30414241403).

The spelling of 30312120100 in words is "thirty billion, three hundred twelve million, one hundred twenty thousand, one hundred".